1,721,317 research outputs found

    Radiofrequency thermal ablation vs percutaneous ethanol injection for small hcc in cirrhosis:metanalysis of randomized controlled trials

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    1. Am J Gastroenterol. 2009 Feb;104(2):514-24. Epub 2009 Jan 13. Radiofrequency thermal ablation vs. percutaneous ethanol injection for small hepatocellular carcinoma in cirrhosis: meta-analysis of randomized controlled trials. Orlando A, Leandro G, Olivo M, Andriulli A, Cottone M. Department of Medicine, Pneumology and Nutrition Clinic, V. Cervello Hospital, University of Palermo, Piazza Mameli 1, Palermo, Italy. [email protected] OBJECTIVES: Radiofrequency thermal ablation (RF) and percutaneous ethanol injection (PEI) have been employed in the treatment of small hepatocellular carcinoma (HCC) as curative treatments. The aim of the study was to review the available evidence comparing RF to PEI for small HCC. METHODS: Search strategy: Cochrane, MEDLINE, CANCERLIT, and ENBASE databases were used. Selection criteria: randomized clinical trials evaluating RF vs. PEI. Data were extracted from each randomized controlled trial (RCT). Primary outcomes were overall survival and local recurrence. Meta-analysis software was used and risk differences (RDs) and their 95% confidence intervals and Q-test for heterogeneity were calculated. RESULTS: Five RCTs were identified including 701 patients. The overall survival was significantly higher in patients treated with RF than in those treated with PEI (RD 0.116, 95% CI 0.173/0.060; heterogeneity not present). Local recurrence rate is significantly higher in patients treated with PEI than in those treated with RF. In the RF group the 1, 2, and 3 years cancer-free survival rates were significantly better than in the PEI-treated patients (respectively: RD 0.098-95% CI 0.006/0.189; heterogeneity P=0.57; RD 0.187, 95% CI 0.082/0.293; heterogeneity P=0.98; RD 0.210, 95% CI 0.095/0.325; heterogeneity P = 0.78). A small number of adverse events were reported in the two treatments. CONCLUSIONS: RF ablation is superior to PEI in the treatment of small HCC with respect to overall survival, 1, 2, and 3 years survival rates, 1, 2, and 3 cancer-free survival rates, and tumor response. RF shows a significantly smaller risk of local recurrence

    Esophageal achalasia: A mistery with different solutions

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    Achalasia is still an intrigning "mistery" and although different "solutions" are available, the definitive "cure" is missing. The present review summarizes the available data in the literature regarding drug therapy, the use of botolinum toxin intrasphinteric injection, and pneumatic dilation while direct comparative information is still lacking, some guidelines on therapeutic options can be given

    The aminopyrine breath test

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    The metabolic basis and clinical application of the aminopyrine breath test (ABT) as a measure of liver function is reviewed in this article. Several papers have been published in the 20 years that have elapsed since the test was validated in man by Hepner and Vesell. Nevertheless, even if the aminopyrine breath test has been shown to be a non-invasive, reliable and semiquantitative liver function test with diagnostic and prognostic accuracy, it is not yet extensively used in clinical practice, probably because it is not widely known to clinicians. The aminopyrine breath test, like other newer tests (phenacetin, caffeine and erythromycin breath tests), allows the effects of drugs on hepatic cytochrome P-450 to be explored both in normal subjects and in liver patients. This interesting field of application is sure to expand the appeal of the aminopyrine breath test in the future

    Microscopic colitis progressed to collagenous colitis: A morphometric study

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    Microscopic (also called lymphocytic) colitis and collagenous colitis are two newly recognised clinicopathologic entities of unknown aetiology presenting with chronic watery diarrhoea. In both conditions, the colon appears normal by barium enema and colonoscopy, however, colonic biopsies reveal infiltration of plasma cells and neutrophils within the lamina propria and increased intraepithelial lymphocytes within the surface epithelium. Lack of a thickened collagen band beneath the surface epithelium histologically differentiates microscopic from collagenous colitis. The exact relationship between the two disorders is as yet unknown. The two entities may be variants of the same spectrum of disease or distinct conditions with and without collagen table thickening. The present case report shows progression of microscopic colitis to collagenous colitis in sequential colonic biopsies taken from a patient during a 7-year endoscopic follow-up suggesting that progression of microscopic to collagenous colitis is a possibility and the two diseases are likely to represent variants of the same condition
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